Add and del ccnet compilation dependency in seafile (#347)

* Add and del ccnet compilation dependency in seafile

* Del import ccnet

* Del extra ccnet compilation dependencies

* Del support WIN32

lib/timer.h

@@ -0,0 +1,28 @@
+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+
+#ifndef CCNET_TIMER_H
+#define CCNET_TIMER_H
+
+/* return TRUE to reschedule the timer, return FALSE to cancle the timer */
+typedef int (*TimerCB) (void *data);
+
+struct CcnetTimer;
+
+typedef struct CcnetTimer CcnetTimer;
+
+/**
+ * Calls timer_func(user_data) after the specified interval.
+ * The timer is freed if timer_func returns zero.
+ * Otherwise, it's called again after the same interval.
+ */
+CcnetTimer* ccnet_timer_new (TimerCB           func,
+                             void             *user_data,
+                             uint64_t          timeout_milliseconds);
+
+/**
+ * Frees a timer and sets the timer pointer to NULL.
+ */
+void ccnet_timer_free (CcnetTimer **timer);
+
+
+#endif